To find whether a column exists in data frame or not
r
Solution
Assuming that the name of your data frame is `dat` and that your column name to check is `"d"`, you can use the `%in%` operator:
if("d" %in% colnames(dat))
{
cat("Yep, it's in there!\n");
}
Problem
I have a data.frame with the name "abcframe" ``` a b c 1 1 1 2 2 3 ``` How might I find whether a column exists or not in a given data frame? For example, I would like to find whether a column d exists in the data.frame abcframe.